#big{
	width: 100%;
	height: 100%;
	padding-top: 20px;
	>div{
		width: 90%;
		margin: 0 auto;
		display: flex;
		height: 100%;
		justify-content: space-between;
		.main{
			width: 78%;
			height: 100%;
			background: #FFFFFF;
		}
		.slide{
			width: 20%;
			height: 100%;
		}
	}
}